code: def test_summary(self):
      self.res.summary()
  
imports: import pytest
  import numpy
  from numpy.testing import assert_almost_equal
  from scipy import stats
  import statsmodels.api
  from statsmodels.miscmodels.count import PoissonGMLE, PoissonOffsetGMLE, PoissonZiGMLE
  from statsmodels.discrete.discrete_model import Poisson
  from statsmodels.tools.sm_exceptions import ValueWarning
label_desc: Use image node_id 5 for calling the CompareMixin obj's underlying member method code with example usage: obj.test_summary() without return types